Added vulcanize under third_party/npm_modules

node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-22.js

Index: node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-22.js
diff --git a/node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-22.js b/node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-22.js
new file mode 100644
index 0000000000000000000000000000000000000000..a8b7bc6003733eb5733fb3300fbecb8b6e5588e5
--- /dev/null
+++ b/node_modules/vulcanize/node_modules/uglify-js/test/compress/issue-22.js
@@ -0,0 +1,17 @@
+return_with_no_value_in_if_body: {
+    options = { conditionals: true };
+    input: {
+        function foo(bar) {
+            if (bar) {
+                return;
+            } else {
+                return 1;
+            }
+        }
+    }
+    expect: {
+        function foo (bar) {
+            return bar ? void 0 : 1;
+        }
+    }
+}